Esempio n. 1
0
// handleTableName looks up and sets the schema information and result fields for table name.
func (nr *nameResolver) handleTableName(tn *ast.TableName) {
	if tn.Schema.L == "" {
		tn.Schema = nr.DefaultSchema
	}
	ctx := nr.currentContext()
	if ctx.inCreateOrDropTable {
		// The table may not exist in create table or drop table statement.
		// Skip resolving the table to avoid error.
		return
	}
	if ctx.inDeleteTableList {
		idx, ok := ctx.tableMap[nr.tableUniqueName(tn.Schema, tn.Name)]
		if !ok {
			nr.Err = errors.Errorf("Unknown table %s", tn.Name.O)
			return
		}
		ts := ctx.tables[idx]
		tableName := ts.Source.(*ast.TableName)
		tn.DBInfo = tableName.DBInfo
		tn.TableInfo = tableName.TableInfo
		tn.SetResultFields(tableName.GetResultFields())
		return
	}
	table, err := nr.Info.TableByName(tn.Schema, tn.Name)
	if err != nil {
		nr.Err = errors.Trace(err)
		return
	}
	tn.TableInfo = table.Meta()
	dbInfo, _ := nr.Info.SchemaByName(tn.Schema)
	tn.DBInfo = dbInfo

	rfs := make([]*ast.ResultField, 0, len(tn.TableInfo.Columns))
	sVars := variable.GetSessionVars(nr.Ctx)
	for _, v := range tn.TableInfo.Columns {
		if v.State != model.StatePublic {
			if !sVars.InUpdateStmt || v.State != model.StateWriteReorganization {
				// TODO: check this
				continue
			}
		}
		expr := &ast.ValueExpr{}
		expr.SetType(&v.FieldType)
		rf := &ast.ResultField{
			Column:    v,
			Table:     tn.TableInfo,
			DBName:    tn.Schema,
			Expr:      expr,
			TableName: tn,
		}
		rfs = append(rfs, rf)
	}
	tn.SetResultFields(rfs)
	return
}
Esempio n. 2
0
// handleTableName looks up and sets the schema information and result fields for table name.
func (nr *nameResolver) handleTableName(tn *ast.TableName) {
	if tn.Schema.L == "" {
		tn.Schema = nr.DefaultSchema
	}
	table, err := nr.Info.TableByName(tn.Schema, tn.Name)
	if err != nil {
		nr.Err = err
		return
	}
	tn.TableInfo = table.Meta()
	dbInfo, _ := nr.Info.SchemaByName(tn.Schema)
	tn.DBInfo = dbInfo

	rfs := make([]*ast.ResultField, len(tn.TableInfo.Columns))
	for i, v := range tn.TableInfo.Columns {
		expr := &ast.ValueExpr{}
		expr.SetType(&v.FieldType)
		rfs[i] = &ast.ResultField{
			Column:    v,
			Table:     tn.TableInfo,
			DBName:    tn.Schema,
			Expr:      expr,
			TableName: tn,
		}
	}
	tn.SetResultFields(rfs)
	return
}
Esempio n. 3
0
// handleTableName looks up and sets the schema information and result fields for table name.
func (nr *nameResolver) handleTableName(tn *ast.TableName) {
	if tn.Schema.L == "" {
		tn.Schema = nr.DefaultSchema
	}
	ctx := nr.currentContext()
	if ctx.inDeleteTableList {
		idx, ok := ctx.tableMap[nr.tableUniqueName(tn.Schema, tn.Name)]
		if !ok {
			nr.Err = errors.Errorf("Unknown table %s", tn.Name.O)
			return
		}
		ts := ctx.tables[idx]
		tableName := ts.Source.(*ast.TableName)
		tn.DBInfo = tableName.DBInfo
		tn.TableInfo = tableName.TableInfo
		tn.SetResultFields(tableName.GetResultFields())
		return
	}
	table, err := nr.Info.TableByName(tn.Schema, tn.Name)
	if err != nil {
		nr.Err = errors.Trace(err)
		return
	}
	tn.TableInfo = table.Meta()
	dbInfo, _ := nr.Info.SchemaByName(tn.Schema)
	tn.DBInfo = dbInfo

	rfs := make([]*ast.ResultField, len(tn.TableInfo.Columns))
	for i, v := range tn.TableInfo.Columns {
		expr := &ast.ValueExpr{}
		expr.SetType(&v.FieldType)
		rfs[i] = &ast.ResultField{
			Column:    v,
			Table:     tn.TableInfo,
			DBName:    tn.Schema,
			Expr:      expr,
			TableName: tn,
		}
	}
	tn.SetResultFields(rfs)
	return
}
Esempio n. 4
0
// handleTableName looks up and bind the schema information for table name
// and set result fields for table name.
func (sb *InfoBinder) handleTableName(tn *ast.TableName) {
	if tn.Schema.L == "" {
		tn.Schema = sb.DefaultSchema
	}
	table, err := sb.Info.TableByName(tn.Schema, tn.Name)
	if err != nil {
		sb.Err = err
		return
	}
	tn.TableInfo = table.Meta()
	dbInfo, _ := sb.Info.SchemaByName(tn.Schema)
	tn.DBInfo = dbInfo

	rfs := make([]*ast.ResultField, len(tn.TableInfo.Columns))
	for i, v := range tn.TableInfo.Columns {
		rfs[i] = &ast.ResultField{
			Column: v,
			Table:  tn.TableInfo,
			DBName: tn.Schema,
		}
	}
	tn.SetResultFields(rfs)
	return
}